QualiTunehttp://www.qualitune.org
Tue, 28 Feb 2017 09:06:09 +0000de-DEhourly1https://wordpress.org/?v=4.9.8Every sixth Android App has Energy Bugshttp://www.qualitune.org/?p=661
Mon, 12 Aug 2013 12:22:59 +0000http://www.qualitune.org/?p=66118% of all Android applications contain energy bugs. This is the central result of a study conducted at the Technische Universität Dresden, being presented at the international GreenCom 2013 conference on August, 21st. Besides from energy bugs in applications developed by small and unknown software developers, energy bugs can be found for mailing and social media applications of well-known software developers such as Microsoft (Outlook) and Google (Google+).

Within the study, more than 9 million user comments extracted from the Google Play store have been extracted and analyzed w.r.t. hints indicating negative energy behavior of the respective applications. „An example for an energy bug is the running of an application is the background over a long time period, without providing its user an additional use“, says Claas Wilke, research assistant at the TU Dresden. „A typical, often-mentioned scenario is the complete depletion of a smartphone battery over night, afterwards users installed an additional application containing such a bug.“ Further typical energy bugs include synchronization problems and frequent reloading of advertisement banners within freely-available applications.

Within the 9 million analyze user comments, for 18% of the respective 21’500 Android applications, comments have been found, complaining about negative energy behavior. „Although one single comment complaining about the energy consumption of an app cannot indicate energy bugs within this application, these numbers illustrate the dimension of the problem“, says Claas Wilke. Furthermore, it could be shown that energy bugs negatively influence the ratings, users give for applications within the market place. „Applications having many energy bugs are rated more negatively than competitors“, says Claas Wilke. „Thus, energy mugs are not a problem for applications users only, but an economic problem of their vendors as well.“

On the conference, Claas Wilke present the study Energy Consumption and Efficiency in Mobile Applications: A User Feedback Study, evaluating the distribution of energy-efficiency problems in Android applications and their impact on the user satisfaction of mobile application users.

]]>New topic for student thesis in the area of energy refactoringhttp://www.qualitune.org/?p=621
Fri, 22 Mar 2013 08:34:41 +0000http://www.qualitune.org/?p=621Software development processes always consists of the iteration implementation and but often the iteration optimization. In the implementation phase the focus rely on the functional requirements whereas in the optimization phase the developer concentrates on the non-functional requirements — also considered as qualities. Therein, the objective is that satisfaction of particular quality requirements in a running system is to be optimized while the functional system behaviour is preserved. Nowadays the quality energy efficiency is more important than ever because mobile devices get more and more powerful but their accumulators do not. The aim of this student thesis is to conduct a study amongst Android software developers to investigate recurring patterns in program code indicating bad energy consumption on the running mobile application. In addition refactorings shall be defined to resolve those patterns with regard to better energy efficiency while the functional behaviour is preserved. A detailed description of this topic can be found here (german).
]]>Open Position as Student Assistanthttp://www.qualitune.org/?p=613
Tue, 12 Feb 2013 14:40:08 +0000http://www.qualitune.org/?p=613The junior research group Qualitune is searching up to three students for the shot and post production of an image video documenting research results from the ResUbic research cluster. Click here to read more (task description in German).

]]>QualiTune @ Eclipse Demo Camp Dresdenhttp://www.qualitune.org/?p=574
Wed, 14 Nov 2012 13:08:19 +0000http://www.qualitune.org/?p=574On Tuesday, November 20th, Claas Wilke will present recent results from the QualiTune research group at the Eclipse Demo Camp in Dresden. The demo camp takes place at the TU Dresden, Fakultät Information and starts at 7:00 PM in room INF/E023.

Claas Wilke will talk on qMark, our new energy profiling infrastructure for Android applications. As the Eclipse Demo Camp is mainly designed for demonstrations, the talk will focus on a demonstration of the Eclipse-integrated profiling tools of qMark.

]]>QualiTune Paper wins Best Paper Awardhttp://www.qualitune.org/?p=503
Tue, 04 Sep 2012 17:24:35 +0000http://www.qualitune.org/?p=503A paper by Christian Piechinick, Sebastian Richly, Sebastian Götz, Claas Wilke, and Uwe Aßmann on Using Role-Based Composition to Support Unanticipated, Dynamic Adaptation – Smart Application Grids won a best paper award on this years International Conference on Adaptive and Self-adaptive Systems and Applications (Adaptive2012).

Congratulations!

]]>Federal Minister Schavan @ QualiTunehttp://www.qualitune.org/?p=490
Thu, 23 Aug 2012 07:30:12 +0000http://www.qualitune.org/?p=490Yesterday, Federal Minister Anette Schavan visited the Technische Universität Dresden to announce the new research funding program Zwanzig20. During their visit, Minister Schavan, as well as Minister-President Tillich (Saxony) and Minister-President Haseloff (Saxony-Anhalt) took a look at lastest research results from projects at the TU Dresden, including QualiTune: